Question

Show that the function f(x)= sqrt(x-2) is not differentiable at x=2 using the limit definition of the derivative.

Answer 1

do you know the definition of a derivative?

Answer 2

If not you should learn it

Answer 3

here watch this video it will teach you how to do it
http://www.youtube.com/watch?v=vzDYOHETFlo

Answer 4

thanks

Answer 5

if you watch the video it will explain it better in detail.